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Variation in trophic shift for stable isotope ratios of carbon, nitrogen, and sulfur
Use of stable isotope ratios to trace pathways of organic matter among consumers requires knowledge of the isotopic shift between diet and consumer. Variation in trophic shift among consumers can beExpand
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Tracing Nitrogen Sources and Cycling in Catchments
Publisher Summary This chapter focuses on the uses of isotopes to understand water chemistry.I Isotopic compositions generally cannot be interpreted successfully in the absence of other chemical andExpand
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Tracing Anthropogenic Inputs of Nitrogen to Ecosystems
Nitrate (NO3 ) concentrations in public water supplies have risen above acceptable levels in many areas of the world, largely as a result of overuse of fertilizers and contamination by human andExpand
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Global patterns of the isotopic composition of soil and plant nitrogen
[1] We compiled new and published data on the natural abundance N isotope composition (δ15N values) of soil and plant organic matter from around the world. Across a broad range of climate andExpand
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Isotope tracers in catchment hydrology
Part 1 Basic principles: fundamentals of small catchment hydrology, J.M. Buttle fundamentals of isotope geochemistry, C. Kendall, E.A. Caldwell. Part 2 Processes affecting isotopic compositions:Expand
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Distribution of oxygen-18 and deuterium in river waters across the United States†
Reconstruction of continental palaeoclimate and palaeohydrology is currently hampered by limited information about isotopic patterns in the modern hydrologic cycle. To remedy this situation and toExpand
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Carbon and nitrogen isotopic compositions of particulate organic matter in four large river systems across the United States
Riverine particulate organic matter (POM) samples were collected bi-weekly to monthly from 40 sites in the Mississippi, Colorado, Rio Grande, and Columbia River Basins (USA) in 1996–97 and analysedExpand
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A new method for collection of nitrate from fresh water and the analysis of nitrogen and oxygen isotope ratios
Abstract A new method for concentrating nitrate from fresh waters for δ 15 N and δ 18 O analysis has been developed and field-tested for four years. The benefits of the method are: (1) elimination ofExpand
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Fundamentals of Isotope Geochemistry
Publisher Summary The dominant use of isotopes in catchment research in the last few decades has been to trace sources of waters and solutes. Generally, such data were evaluated with simple mixingExpand
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